KR20050028190A - A leakage current interception formation of refrigerator door - Google Patents

A leakage current interception formation of refrigerator door Download PDF

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Publication number
KR20050028190A
KR20050028190A KR1020030064578A KR20030064578A KR20050028190A KR 20050028190 A KR20050028190 A KR 20050028190A KR 1020030064578 A KR1020030064578 A KR 1020030064578A KR 20030064578 A KR20030064578 A KR 20030064578A KR 20050028190 A KR20050028190 A KR 20050028190A
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KR
South Korea
Prior art keywords
refrigerator
door
leakage current
main body
diode
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KR1020030064578A
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Korean (ko)
Inventor
이원복
Original Assignee
엘지전자 주식회사
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Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020030064578A priority Critical patent/KR20050028190A/en
Priority to US10/938,648 priority patent/US20050056046A1/en
Publication of KR20050028190A publication Critical patent/KR20050028190A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/006—Safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/028—Details

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

A structure for blocking a leakage current for a refrigerator door is provided to prevent the leakage current generated from the main body of the refrigerator from being transmitted to the door and remove static electricity via earth line. A structure for blocking a leakage current for a refrigerator door includes an earth line(10) provided in a power line of a refrigerator and connected to a main body of the refrigerator, and a door hinge(130) provided to the main body of the refrigerator for opening or closing a door of the refrigerator. A one-sided switching element such as a diode(110) is provided between the earth line and the door hinge for blocking a leakage current generated from the main body of the refrigerator. The diode has a cathode terminal connected to the earth line and an anode terminal connected to the door hinge, so that the leakage current is not introduced into the door and static electricity is abandoned via the earth line.

Description

냉장고 도어의 누설전류 차단구조{A leakage current interception formation of refrigerator door}A leakage current interception formation of refrigerator door}

본 발명은 냉장고에 관한 것으로, 더욱 상세하게는 냉장고 도어에 흐르는 누설전류를 차단하고, 도어에서 발생된 정전기는 냉장고 본체로 흐르게 하는 냉장고 도어의 누설전류 차단구조에 관한 것이다.The present invention relates to a refrigerator, and more particularly, to a leakage current blocking structure of a refrigerator door that blocks a leakage current flowing through the refrigerator door and causes static electricity generated in the door to flow to the refrigerator main body.

종래 기술에 따른 냉장고 도어의 누설전류 차단구조에 대해 살펴보면 다음과 같다.Looking at the leakage current blocking structure of the refrigerator door according to the prior art as follows.

도 1a는 종래 기술에 따른 냉장고의 회로도이다.1A is a circuit diagram of a refrigerator according to the prior art.

종래에는 도 1a에 도시된 바와 같은 냉장고 회로의 결선 상에 전원코드의 메인 전원선(15)과 어스선(10)을 함께 제품에 적용하고 있다. 이와 같은 종래의 어스선(10)은, 일반적으로 외곽 충전부(금속부)에 어스 처리를 하여 냉장고 내의 누전이 발생하였을때 어스선(10)을 통해서 대지로 흘러 나가는 구조로 이루어져 있다. 또한, 종래에는 미세 누설 전류도 어스선(10)을 통해 대지로 흘러 나가는 구조로 이루어져 있다.Conventionally, the main power line 15 and the earth line 10 of the power cord are applied to the product together on the connection of the refrigerator circuit as shown in FIG. 1A. Such a conventional earth wire 10 generally has a structure that flows to the ground through the earth wire 10 when an earth leakage occurs in the refrigerator by performing an earth treatment on the outer charging part (metal part). In addition, conventionally, the fine leakage current also has a structure that flows out to the ground through the earth wire (10).

상기 냉장고 본체의 어스선(10)은 냉장고 도어 힌지에 연결되며, 냉장고가 누전이 되는 경우 냉장고 본체와 도어간에 흐르는 누설전류가 어스선(10)을 통해 대지로 흘러 나가는 구조이다.The ground wire 10 of the refrigerator main body is connected to the refrigerator door hinge, and when the refrigerator is shorted, a leakage current flowing between the refrigerator main body and the door flows out to the ground through the ground wire 10.

그러나 콘센트 내의 어스 처리가 되지 않은 상황에서는, 냉장고 본체에 흐르는 미세 누설 전류를 흘려보낼 곳이 없으므로, 민감한 사람에게서 미세 누설전류가 감지될 수 있다.However, in a situation where the grounding process is not performed in the outlet, since there is no place to flow the micro leakage current flowing in the refrigerator main body, the micro leakage current may be detected by a sensitive person.

도 1b는 종래 기술에 따른 냉장고의 단면도이고, 도 1c는 종래 기술에 따른 냉장고의 단면도이다.Figure 1b is a cross-sectional view of a refrigerator according to the prior art, Figure 1c is a cross-sectional view of the refrigerator according to the prior art.

도면에 도시되고 있는 바와 같이 상기 도 1a의 어스선(10)이 냉장고의 도어힌지(20)에 연결되고 있다. 상기 도어힌지(20)는, 본체에 연결된 금속 구조물로서, 도어를 끼워 도어를 처짐, 탈거를 방지하기 위한 도어 개폐의 구조물이다.As shown in the figure, the earth wire 10 of FIG. 1A is connected to the door hinge 20 of the refrigerator. The door hinge 20 is a metal structure connected to the main body, and is a structure of opening and closing the door to prevent the door from sagging and being removed by fitting the door.

이러한 구성의 냉장고에서, 냉장고 본체에 발생된 누설전류의 흐름은 다음과 같이 진행된다.In the refrigerator having such a configuration, the flow of the leakage current generated in the refrigerator main body proceeds as follows.

상기 메인 어스(Earth) →냉장고 본체 연결 →도어힌지 →도어, 도어핸들, 즉, 냉장고 본체에서 발생되는 누설전류는 도어힌지(20)를 통해서, 도어 및 도어핸들 등으로 전달된다. 이에 따라 사람이 도어 및 도어핸들에 접촉되는 순간 미세한 전류를 감지할 수 있다.The main earth → refrigerator body connection → door hinge → door, the door handle, that is, the leakage current generated in the refrigerator body is transmitted to the door and the door handle through the door hinge 20. Accordingly, a minute current can be detected when a person contacts the door and the door handle.

따라서 종래에는 전원코드(15)에 메인 어스(10)가 구성된 경우에는, 냉장고 본체에 구성된 전원코드(15)의 메인 어스(10)를 통해서 전원이 흘러나가지만, 가정에 구성된 콘센트에 어스 처리가 되어 있지 않으면, 냉장고 본체의 누설전류가 냉장고 도어에 전달되어진다. 이 때문에 종래 냉장고는 누설전류로 인한 냉장고 사용의 불쾌감 및 성능 의심 등의 문제점을 야기시키고 있다.Therefore, when the main earth 10 is configured in the power cord 15, power flows through the main earth 10 of the power cord 15 configured in the refrigerator main body. If not, the leakage current of the refrigerator main body is transmitted to the refrigerator door. For this reason, the conventional refrigerator causes problems such as unpleasant use of the refrigerator due to leakage current and doubt of performance.

따라서 본 발명의 목적은 냉장고 본체에서 도어힌지를 통해 도어로 들어오는 누설전류를 차단하고, 냉장고 도어에서 발생되는 정전기가 본체로 나갈 수 있도록 하는 냉장고 도어의 누설전류 차단구조를 제공함에 있다.Accordingly, an object of the present invention is to provide a leakage current blocking structure of a refrigerator door to block leakage current entering the door through the door hinge from the refrigerator main body and allow static electricity generated from the refrigerator door to exit to the main body.

상기 목적을 달성하기 위한 본 발명에 따른 냉장고 도어의 누설전류 차단구조는, 냉장고 회로의 전원선에 구성되어, 냉장고 본체에 연결되는 어스선과; 냉장고 본체에 구성되어, 냉장고 도어의 개폐를 위한 구조물인 도어힌지와; 상기 어스선과 도어힌지 사이에 구성되어, 냉장고 본체로부터 발생되는 누설전류를 차단하는 일방향 스위칭소자를 포함하여 구성된다.Leakage current blocking structure of the refrigerator door according to the present invention for achieving the above object, the ground wire is configured in the power supply line of the refrigerator circuit, and connected to the refrigerator main body; A door hinge configured in the refrigerator main body and configured to open and close the refrigerator door; It is configured between the earth wire and the door hinge, and comprises a one-way switching element for blocking the leakage current generated from the refrigerator main body.

이하 본 발명에 따른 냉장고 도어의 누설전류 차단구조에 대해 살펴보면 다음과 같다. 본 발명에 따른 냉장고의 회로는 도 1a를 참조하여 설명한다.Hereinafter, the leakage current blocking structure of the refrigerator door according to the present invention will be described. The circuit of the refrigerator according to the present invention will be described with reference to FIG. 1A.

도 2a는 본 발명에 따른 냉장고의 단면도이고, 도 2b는 본 발명에 따른 냉장고 도어의 누설전류 및 정전기의 흐름을 나타내는 상태도이다.Figure 2a is a cross-sectional view of the refrigerator according to the present invention, Figure 2b is a state diagram showing the leakage current and the flow of static electricity in the refrigerator door according to the present invention.

도면에 도시되고 있는 바와 같이 본 발명은, 냉장고 본체와 연결된 전원코드(15)의 어스선(10)이 도어 힌지(130)와 연결된 구조이다. 그리고 상기 냉장고 본체의 전원코드(15)에 구성된 어스선(10)과 냉장고 본체의 도어 힌지(130) 사이에 다이오드(110)를 연결한다. 상기 다이오드(110)는 일방향 스위칭소자로서, 상기 냉장고 본체로부터 들어오는 누설전류를 차단한다. 본 발명에서는 일방향 스위칭소자로서 다이오드를 실시예로 하고 있으나 동일한 기능을 수행하는 다른 어떤 소자도 사용 가능하다. 그리고 상기 다이오드(110)는 도어 및 도어핸들에서 발생되는 정전기를 냉장고 전원코드(15)의 어스선(10)을 통해서 나갈 수 있도록 동작한다.As shown in the figure, the present invention has a structure in which the earth wire 10 of the power cord 15 connected to the refrigerator main body is connected to the door hinge 130. The diode 110 is connected between the earth wire 10 formed in the power cord 15 of the refrigerator main body and the door hinge 130 of the refrigerator main body. The diode 110 is a one-way switching element, and blocks the leakage current from the refrigerator main body. In the present invention, a diode is used as the one-way switching device, but any other device that performs the same function may be used. The diode 110 operates to discharge static electricity generated from the door and the door handle through the earth wire 10 of the refrigerator power cord 15.

즉, 어스선(10)과 냉장고 도어의 힌지(130) 사이에 상기 다이오드(110)를 구성한다. 전원코드(15)의 어스선(10) 측에는 다이오드(110)의 캐소드단이 연결되고, 도어 힌지(130) 측에는 다이오드(110)의 애노드단이 연결된다. 그 결과 냉장고 본체에 구성된 전장부품 들로부터 도어(120)로 흐르는 누설전류를 차단하고, 도어(120)에서 발생된 정전기는 냉장고의 전원코드(15)에 구성된 어스선(10)을 통해서 흘러 나가는 구조이다.That is, the diode 110 is configured between the earth wire 10 and the hinge 130 of the refrigerator door. The cathode end of the diode 110 is connected to the earth line 10 side of the power cord 15, and the anode end of the diode 110 is connected to the door hinge 130 side. As a result, the leakage current flowing to the door 120 is blocked from the electrical components configured in the refrigerator main body, and the static electricity generated in the door 120 flows out through the earth wire 10 configured in the power cord 15 of the refrigerator. .

도 2b에 도시되고 있는 바와 같이, 상기 누설전류의 흐름은, 냉장고 본체의 전장부품 들에서 누설전류가 발생되면, 상기 누설전류는 다이오드(110)의 캐소드로 전달된다. 이때, 상기 다이오드(110)는 누설전류의 흐름을 차단한다. 그 결과 도어 및 도어 핸들 등에 누설전류가 흐르는 것을 방지함으로서, 신체의 일부가 도어(120) 및 도어 핸들에 접촉하는 순간 누설전류의 감지를 감지하는 것을 미연에 막을 수 있다.As shown in FIG. 2B, the leakage current flows to the cathode of the diode 110 when the leakage current is generated in the electronic components of the refrigerator main body. At this time, the diode 110 blocks the flow of leakage current. As a result, by preventing the leakage current from flowing in the door and the door handle, it is possible to prevent the detection of the leakage current at the moment when a part of the body contacts the door 120 and the door handle.

반면, 도어, 도어핸들에서 발생되는 정전기는, 도어 힌지(130)를 통해서 다이오드(110)의 애노드로 전달된다. 이에 따라 상기 다이오드(110)는 도통되어, 냉장고 본체로 정전기를 전달하고, 냉장고 본체와 연결된 어스선(10)을 통해서 그라운드된다. 그 결과 정전기의 발생이 억제되어, 사용자가 안전하게 냉장고 도어(120)를 개폐할 수 있다.On the other hand, static electricity generated in the door and the door handle is transferred to the anode of the diode 110 through the door hinge 130. Accordingly, the diode 110 is turned on, transfers static electricity to the refrigerator main body, and is grounded through the earth wire 10 connected to the refrigerator main body. As a result, the generation of static electricity is suppressed, and the user can safely open and close the refrigerator door 120.

이상 살펴본 바와 같이 본 발명은, 냉장고 회로의 어스선과 힌지 사이에 다이오드를 구성하여, 콘센트에 어스처리가 되지 않은 경우에서도 냉장고 본체로부터 흐르는 누설전류를 차단하고, 도어에서 발생되는 정전기를 외부로 배출하는 것을 기본적인 기술적 사상으로 한다.As described above, the present invention constitutes a diode between the ground wire and the hinge of the refrigerator circuit to block leakage current flowing from the refrigerator main body even when the outlet is not grounded, and to discharge static electricity generated from the door to the outside. Let it be a basic technical idea.

본 발명의 권리는 위에서 설명된 실시예에 한정되지 않고 청구범위에 기재된 바에 의해 정의되며, 본 발명의 분야에서 통상의 지식을 가진 자가 청구범위에 기재된 권리범위 내에서 다양한 변형과 개작을 할 수 있다는 것은 자명하다. The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. It is self-evident.

따라서 본 발명에 따른 냉장고 도어의 누설전류 차단구조를 통해서 다음과 같은 효과를 기대할 수 있다.Therefore, the following effects can be expected through the leakage current blocking structure of the refrigerator door according to the present invention.

본 발명은 콘센트 내에 어스처리를 하지 않는 경우에서도 냉장고 본체에서 발생되는 누설전류를 원천적으로 차단함으로서, 사용자가 도어, 도어핸들에 접촉하는 경우 발생되는 누설전류 감지현상을 방지할 수 있다. 또한, 본 발명은 도어, 도어핸들에서 발생되는 정전기가 냉장고 본체에 연결된 어스선을 통해서 그라운드됨으로서, 사용자에게 불쾌감을 주지않고, 안전하게 냉장고 도어를 개폐할 수 있다.According to the present invention, even when the grounding is not performed in the outlet, the leakage current generated in the refrigerator body is cut off at the source, thereby preventing the leakage current sensing phenomenon generated when the user contacts the door or the door handle. In addition, according to the present invention, the static electricity generated in the door and the door handle is grounded through an earth wire connected to the refrigerator main body, so that the refrigerator door can be safely opened and closed without causing discomfort to the user.

도 1a는 종래 기술에 따른 냉장고의 회로도.Figure 1a is a circuit diagram of a refrigerator according to the prior art.

도 1b는 종래 기술에 따른 냉장고의 단면도.1b is a sectional view of a refrigerator according to the prior art;

도 1c는 종래 기술에 따른 냉장고의 정면도.1c is a front view of a refrigerator according to the prior art;

도 2a는 본 발명에 따른 냉장고의 단면도.2a is a sectional view of a refrigerator according to the present invention;

도 2b는 본 발명에 따른 냉장고 도어의 누설전류 및 정전기의 흐름을 나타내는 상태도.Figure 2b is a state diagram showing the leakage current and the flow of static electricity in the refrigerator door according to the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *           Explanation of symbols on the main parts of the drawings

10 : 어스(Earth) 110 : 다이오드10: Earth 110: Diode

120 : 냉장고 도어 130 : 힌지120: refrigerator door 130: hinge

Claims (1)

냉장고 회로의 전원선에 구성되어, 냉장고 본체에 연결되는 어스선과;An earth wire configured on a power line of the refrigerator circuit and connected to the refrigerator main body; 냉장고 본체에 구성되어, 냉장고 도어의 개폐를 위한 구조물인 도어힌지와;A door hinge configured in the refrigerator main body and configured to open and close the refrigerator door; 상기 어스선과 도어힌지 사이에 구성되어, 냉장고 본체로부터 발생되는 누설전류를 차단하는 일방향 스위칭소자를 포함하여 구성되는 냉장고 도어의 누설전류 차단구조.The leakage current blocking structure of the refrigerator door is configured between the earth wire and the door hinge, and comprises a one-way switching element to block the leakage current generated from the refrigerator main body.
KR1020030064578A 2003-09-17 2003-09-17 A leakage current interception formation of refrigerator door KR20050028190A (en)

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US10/938,648 US20050056046A1 (en) 2003-09-17 2004-09-13 Leakage current interruption formation in refrigerator door

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KR100850610B1 (en) * 2006-05-22 2008-08-05 엘지전자 주식회사 Malfunction protecting apparatus and its method for refrigerator
KR20150110006A (en) * 2014-03-22 2015-10-02 삼성전자주식회사 Refrigerator

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CN103542685B (en) * 2012-07-13 2015-11-25 海尔集团公司 Compressor circuit insulating method and device and anticreep refrigerator
JP6536432B2 (en) * 2016-02-29 2019-07-03 京セラドキュメントソリューションズ株式会社 Image forming device
EP3246632B1 (en) 2016-05-19 2020-02-26 Electrolux Appliances Aktiebolag Domestic appliance comprising a door
US11401099B2 (en) 2019-12-20 2022-08-02 California Innovations Inc. Soft-sided insulated container with hard-sided liner

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Publication number Priority date Publication date Assignee Title
KR100850610B1 (en) * 2006-05-22 2008-08-05 엘지전자 주식회사 Malfunction protecting apparatus and its method for refrigerator
US8109106B2 (en) 2006-05-22 2012-02-07 Lg Electronics Inc. Malfunction preventing device for refrigerator and method thereof
KR20150110006A (en) * 2014-03-22 2015-10-02 삼성전자주식회사 Refrigerator

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